New build with recycled parts on a ridiculous budget 120cm*60cm work area

**Desertboy** · 04-12-2017

Got the spindle back on was nice to see it move with the spindle on and test the water cooling hoses for kinks, etc during movement.

I am going to put the limit switches sideways on like someone suggested maybe 3cm away from the original switches, ordered a couple of roller type ones and have 1 spare. The original ones going to leave in place as hard limits so when I do get a latched relay I can wire it to that with all my other emergency stuff.

**Desertboy** · 06-12-2017

Water cooling works ;)

Still waiting on roller limit switches, box is 90% finished now.

**Desertboy** · 09-12-2017

Still no roller switches but found a spare one so i can fit 2 for the Y axis over the weekend, getting it fitted in place finally.

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**Nr1madman** · 09-12-2017

Awesome! :D

What type of rollerswitches did you get?

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**Desertboy** · 09-12-2017

Originally Posted by Nr1madman

Awesome! :D

What type of rollerswitches did you get?

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https://www.ebay.co.uk/itm/1PC-Micro...72.m2749.l2649

I got 2 of these and have 2 honeywells same type already.

Now I've found the missing one I can sort the Y out which is the most important anyway as I'm going to use the switches to square the gantry when homing. This is going to take me a little while to work out in linuxcnc lol.

**Nr1madman** · 09-12-2017

Originally Posted by Desertboy

https://www.ebay.co.uk/itm/1PC-Micro...72.m2749.l2649

I got 2 of these and have 2 honeywells same type already.

Now I've found the missing one I can sort the Y out which is the most important anyway as I'm going to use the switches to square the gantry when homing. This is going to take me a little while to work out in linuxcnc lol.

Was thinking about that type aswell.. have some somewhere :D but Im probably gonna buy this kind https://m.ebay.co.uk/itm/Blue-ME-810...IAAOSwIgNXjh-v

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**Clive S** · 09-12-2017

Originally Posted by Nr1madman

Was thinking about that type aswell.. have some somewhere :D but Im probably gonna buy this kind https://m.ebay.co.uk/itm/Blue-ME-810...IAAOSwIgNXjh-v

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I personally would go with this type https://www.ebay.co.uk/i/22256467184...4960578&crdt=0

No moving parts to go wrong.

**Nr1madman** · 09-12-2017

Originally Posted by Clive S

I personally would go with this type https://www.ebay.co.uk/i/22256467184...4960578&crdt=0

No moving parts to go wrong.

To tell the truth Ive bought that kind for my home switches, was thinking about going mechanical for my limits because of all the forum threads I have seen about connecting proximity switches and different types (npn, pnp) and the problems people have in connecting them. I guess its not complicated and if I get confused I could always get my multimeter and figure out whats going on.
But I just dont want anything more complications right now :)

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**Clive S** · 09-12-2017

Yes you are correct they don't need to be accurate for limits and easier to connect in one loop.

**Desertboy** · 09-12-2017

Am I right in thinking it's pointless to use limit switches if you're only going to wire them to the Estop as the home switches can do the same job? They become useful when fitted to an external override like a latched relay?

Is this correct?